Earmark.



- H. G. STOLL.

EARMARK APPLIOATIOK nun APILIZ, 1910.

, Patented Jan. 31:;1911,

[NVENTORA Attorneys HENRY e. sroLt, or summon, NEBRASKA} nsamanx.

To all whom it may concern Be it known that I, HENRY O. STOLL, a citizenof the United States, residing at Beat-rice, in the county of Gage andState of Nebraska, have invented certain new and useful Improvements inEarmarks; and I do hereby declare the'following to be a full, clear, andexact description of the invention, such as will enable-others skilledin the artto which it appertains to make and use the same.

' 'My invention relates to new and useful improvements in ear marks andmore particularly to-that class adapted to be'used for marking stock ofvarious kinds, whereby a perfect and positive register of the stock mayhe kept and my object is to provide a inark'intwo parts, the stems ofwhich are telescoping and interlocking.

A further object is to provide disks at the ends of the stems which willengage opposite sides of the ears of the animal and u on which certainmarkings may be placed w ien desired. T

A further object is to so arrange said disks as to cause the same toclosely engage the opposite faces of-the ears to prevent the disks fromcatching upon objects as the animal is moving about, and, a furtherobjectis to provide a seat in one of the stems to a receive the end ofthe opposite stem toguard the, former.

Other objects and advantages will be'here inafter referred to and moreparticu'larly.

Referring to thedrawings in which simi lar reference numerals designatecorresponding partsthroughout the several views, 1 and. 2 indicate thestems respectively of'the two sections of the'mark, the stem 2 being,adapted to telescope and fit within the stem 1.

At one end of each of the stemsis a disk 3 and 4 respectively,*whichdisks are preferably flat and are adapted to closely engage theopposite. faces or the ear 5 of the animal UNITED STATES PATENT OFFICE.

Specification of Letters iatent. Application filed April '12,

against the releasing of the latterstem trom Patented Jan. 31, 1911.1910. Seria1No.55 5,081..

and in view of the ex'tentof the disks, various characters for markingpurposes maybe placed thereon.

On the interior of the stem 1 and at-the end thereof having the disk 3is formed a circumferential groove 6, into which the free end of thestem 2 is adapted to be forced and by providing the groove substantiallyV shaped, the upper wall 7 thereof will overhang the end of the stem 2,when the end of said stem is forced into the groove,*the lower wall". 8.of the groove being curved so that when the end of the stem 2 is'spreadto interlock the same with the stem .1, the end face of the stem willregister with the upper wall 7 of the groove- I i In actual practice,the depth of the groove would he very slight inview of the thinness ofthe material used in forming the stems, but is of suflicient extentto-overlap the end of the stem to prevent a knife or zoth'er instrumentfrom being readily forced below the clenching end of the stem '2 torelease the same from the stem 1, thereby rendering and moved upwardly:therein until the end of the stem 1 engages the inner. face of the disk4 and by selecting stems of the'proper length to correspond with thethickness of the ear of the animal, the disks will snugly "engage the o'posite faces of the. ear. The

free endof .t e stem 2 is then F's'pread and seated within the groove 6through theme dium of a pair of pliers 9, one of the jaws of the pliershaving a mandrel 10theron, which enters the opening through the stem 2and by tapering the mandrel, the end of thestem 2 will be graduallyspread, as the mandred is forcedinto the stem, the taper. of

the mandrel causing the stem to spread uni- 'formly, and engage thegroove 6.

2', the pressure required to clench the end of the-stem 2-will notatfect the position of the- .disks with respect to the'ear, but willpositively force the end of the stem lnto engagement with the groove inthe opposite stem.

The disks 3and 4 are so arrangedas not.

to cause an irritation to the ear, which fre- In view of the rigidity ofthe stems 1 and quently happens in other forms of marks.

which resu ts in. the ears decaying and the losin of the mark. It willlikewise be seen that y providing circular disks, objects such as brush,ires of fences, etc, will not catch upon the disks When-the ear of theanimal is moved against the same and should for any reason an objectcatch upon the mark, said mark Will readily rotate and release theobject, when the animal moves the ear' away from the object.

The mark is made of a light metal so that any suitable ,form of markingcharacters ma be placed thereon andit will be seen that in view of thelightness of the mark, the weight thereof on the ear of the animal willnotbe appreciable.

v It will further be understood that the groove can be dispensed with,if preferred, and the end of the stem, when spread, forced 'wall of thegroove overhanging the end of the locking stem.

In testimony whereof I have signed. my

name to this specification in the presence of two subscribing witnesses.

HENRY C. ST'()TJ]-J. \Vitnesses:

' J. T. Gnnnnwoon,

\VALTER D. HILL.

